Exchange 2010 Standard to support High Availability DAGs
From the Unified Communications blog, there is this post on 2010 licensing.
From there:
"On the server side, Exchange Server Standard will now support high availability, so all customers can take full advantage of the new database availability group capabilities. Exchange Server Enterprise enables configurations with up to 100 databases per server."
Still looking for some documentation on the maximum number of databases in a DAG that Standard edition will support, but my presumption is 5 (Similar to the 2007 Standard limitation on DB's)
Update: Scott Schnoll has confirmed this is accurate. Exchange 2010 Standard can have up to 5 DAG databases!
This is HUGE news for small customers wanting HA (the difference between $550 per Exchange Standard and $3200 for Enterprise) - for a 3 server DAG, that's $8k in licensing savings on Exchange ALONE.
Awesome news for small businesses wanting HA and DR for Exchange!
Labels: Disaster Recovery, Exchange 2010, high availability, Licensing
posted by Chris @ 1:03 PM
4 Comments
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4 Comments:
Yes, but wouldn't you still need to buy Server 2008 or Server 2008 R2 Enterprise instead of Standard for each instance of Exchange?
Absolutely. Exchange DAG's require Failover Clustering, only available in the Enterprise Editions of Windows - this is specifically standard versus enterprise on Exchange server.
I think the additional few thousand US$ required to buy two Windows Server 2008 or 2008 R2 Enterprise vs. Standard licenses puts HA out of reach for many small businesses.
At a +1500 increase from std to Ent windows per server, I agree this is out of many small businesses, however so would the 4000+$ servers needed as well. If a business requires HA and wants Exchange 2010, I would recommend they go with Microsoft hosted Exchange.
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